[graememcc]

If your company declares itself insolvent and makes you all redundant by reason of insolvency, then you would be able to claim missing salary, pension contributions, holiday, redundancy pay and (if applicable) pay in lieu of notice from the Redundancy Payments Service, albeit with the payment for each element being capped. From recent experience, once you've made your claim, they pay out pretty promptly once a liquidator has been appointed.

Unfortunately that does require your company to take that step, which it sounds unwilling to do. (It is normally an offence for directors to continue trading a company whilst technically insolvent, but that has been rescinded temporarily due to coronavirus).

If you weren't still employed by them if/when they do declare insolvency, then I suspect you would be treated like any other unsecured creditor with regards to your missing payments.